Window-screen



(No Model.)

c. P. JQBEHR. WINDOW SCREEN.

No. 450,553. PatentedApr. 14,1891.

rTnD STATES nrnN'r Fries.

WINDOW-fSCREEN.

SPECIFICATION forming part of Letters Patent No. 450,553, dated April 14, 1891.

' Application filed May 6, 1890l Serial No. 350,783. A(No model.)

To all 1071.077@ if may concern.-

Beit known that I, CLAUS FRIEDRICH JUR- GEN BEHR, a citizen of the United States of America., residing at Vakefeld, in the county of Middlesex and Commonwealth of Massachusetts, have invented certain Improvements in Window-Screens, of which the following, taken in connection with the accompanying drawings, is a specication,

Thisjnvention relates to that class of window-screens adapted to Various adjustments.

Each member B B of the screen is attachedto and supported by a frame-work composed of top and bottom bars a a and cross-bars e The top and bottom bars a. a and crossbars e e, as shown in the present instance, consist of round dowelvsticks; but obviously the shape or ronndness of the said bars is a matter of taste. The bar f of the member B extends across the adjacent edges of the screen members and is attached to the tubular sections 7L 7L, secured to the bars o., hereinafter described. The bar f of the member B extends across between the upper and lower bars and holds the wire-netting. This bar extends through slots n n in the tubular sections 7L 7L. The cross-bars f f are combined with the adjacent frame-Work, as represented, so that when the two members composing the screen are positioned in the window-opening the edges of the screen material A overlap each other, as shown, to the end that the screen may be drawn out or closed together, the said edges sliding past each other to adapt the screen to the size of different window-openings. To the end that said opening and closing of the screen may be readily and economically effected the top and bottom bars cto of one member of the screen are provided with tubular sections 7L 7i, adapted to receive the ends of top and bottom bars a c of the opposing member of the screen and having slots n n, through which the screen a of one member passes when the two members of the screen are telescoped, as represented in Fig. l.

Within the tubular sections 71l 7L are fitted springs N N, between the opposing` ends of frame-bars ad. Said springs are compressed by the closing together of the frame-Work and operate to force the members ofl the screen apart, thereby holding it closely fitted to the window-opening.

In the bars a a of one member are fitted rivets t t, which project outwardly through elongated openings S S in the tubular sections 77.71,. Said rivets operate as a stop to prevent the screen members from being thrown apart by action of the springs N N. Said rivets are tted to turn loosely in their respective supporting-bars to facilitate an easy operation of the same, and are provided with enlarged heads to prevent endwise displacement.

In addition to the mechanism thus far del scribed, I sometimes employ a rod 5, one end of which is suitably fixed in the bar ct of' one screen member, and the opposite endot which is passed down through the tubular section 7L and its inclosed spring into a suitable hole formed in the bar a of the opposing screen member, in which hole the rod is permitted an endwise sliding movement. n This construcl tion dispenses with the necessity of having the tubular sections 7L and the bars they are to receive fitted nicely to each other. The use of the rod is the more economical construction in many cases, and it is useful as giving support to and thus permitting a varied form of construction and length to the bars ct a.

Having thus described my invention, Iv

2. In combination, the members B B', comprising upper and lower bars c, the tubular sections 7L 71 on the bars c a of one member,

IOC

the ovossbmjf, connecting the tubular section and the cross-bal' j of the member B', extending through slots n n of the sections h h, the rods 5, extending from the bars a of 5 one member into the bars ct ot" another member to have sliding movement, the springs, and the rivets 6 for extending through slots 1 il l in the sections 7L th rough the bars a. and rods 5. Signed at Boston, Massachusetts, this Sth day of Febluary, A. D. 1890.

LAUS FRIEDRICH JRGEN BEHR. Witnesses:

JE. E. HAMILL,

B. TUTTLE. 

